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    0: #!/usr/bin/perl
    1: # This is a quick program to calculate pi using the Monte Carlo method.
    2: # I recomend inputting  a value for $cycles greater that 1000. 
    3: # I am working on a detailed explanation of how and why this works. 
    4: # I will add it as soon as I'm done.
    5: use strict;
    6: my ($cycles, $i, $yespi, $pi) = 0;
    7: srand;
    8: #print "Please enter number of cycles\n";
    9: print "Please enter the amount of cycles:";
    10: chomp($cycles = <STDIN>);
    11: while ($i < $cycles) {
    12:     my ($x, $y, $cdnt) = 0;
    13:     $x = rand;
    14:     $y = rand;
    15:     $cdnt = $x**2 + $y**2;
    16:     if ($cdnt <= 1) {
    17: 	++$yespi;
    18: }    
    19: ++$i;
    20: }
    21: $pi = ($yespi / $cycles) * 4;
    22: print "Pi is $pi\n";
    

In reply to Pi calculator by Fingo

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